molar absorptivity

Light absorption constant

Molar absorptivity is a measure of how strongly a chemical substance absorbs light at a particular wavelength.

It quantifies the ability of one mole of a substance dissolved in one liter of solution to absorb light over a path length of one centimeter.

The value is constant for a given substance under specific conditions, making it useful for identifying compounds and determining concentrations in spectroscopy.

Also called molar extinction coefficient.

Related

dye · pigment · epsilon · spectral analysis · dilution · colorimetry · photons · intensity · molecular · analyte · quartz · baseline · peak · detector · fluorescence

Categories
Opposites
light interaction type

molar absorptivitytransmittance

Fraction not absorbed

reflectance · transparency · luminescence

absorption strength

molar absorptivitycolorless

Devoid of pigmentation

Beer-Lambert law parameters

molar absorptivityoptical path length

Effective light travel distance

concentration · absorbance

Family

molar, molarity, absorb, absorbs, absorbed, absorbing, absorbent, absorption, absorber

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